and both questions from such highly reputable users :o This can only mean one thing...
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animusonSep 17 '12 at 18:11

1

@Matt, thanks for finding that older report, it does indeed seem to be a dupe. All I can say is that I edit answers all the time, and I didn't do anything different this time.
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Mark RansomSep 17 '12 at 18:14

Did you use the browser "Back" button after having created the answer, and edited the answer from that form?
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kiamlalunoSep 17 '12 at 21:39

@kiamlaluno, I see what you're getting at - I started editing the answer that was left over in the answer window rather than hitting "Edit". I think it's unlikely because my habits are more ingrained than that, but I can't rule it out.
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Mark RansomSep 17 '12 at 21:53